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(A crossed box indicates that it is not supported or not required)

One thing to note is: broadcast can only be used as side-input of other Inputs and cannot be directly converted to other streamsOne thing to note is: broadcast can only be used in conjunction with other inputs and cannot be directly converted to other streams.

ProcessFunction

Once we have the data stream, we can apply operations on it. The operations that can be performed over DataStream are collectively called Process Function. It is the only entrypoint for defining all kinds of processings on the data streams.

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